![anamaliiow](/avatars/41843.jpg)
anamaliiow
23.10.2019 •
Mathematics
Which value of x satisfies both 3x + y = 9 and 3x − 5y = 15? . a) \[\frac{ 10 }{ 3 }\]. b) \[\frac{ 2 }{ 3 }\]. c) \[-1\]. d) \[0\].
Solved
Show answers
More tips
- H Health and Medicine How to Increase Blood Pressure without Medication?...
- F Food and Cooking What to Give as a Wedding Gift?...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
Answers on questions: Mathematics
- M Mathematics What is the GCF of 15p^2...
- M Mathematics Find the area of the shaded region. Area of addition and subtraction, trigonometry, and sohcahtoa....
- M Mathematics What is the answer for the north questions...
- M Mathematics 9-74. Thui made the following hypotheses: 2n-1 5 and n +1 2n. Which of the following conclusions can she make? a. n 1 and n 3...
- M Mathematics A surveyor wants to conduct a poll to see how many people in a town prefer to shop online versus at the local mall. which polling method is likely to be biased?...
- M Mathematics 21÷6216 I really need the answer...
- M Mathematics the volume of a soap bubble is 2,308.4 mm ^3. Find the radius and diameter of the soap bubble. Use 3.14 for pi...
- M Mathematics Show your work on theses questions....
- M Mathematics I need help PLEASEE IF YOU GET IT RIGHT I WILL MARK BRAINLIEST PLEASE ITS AN IMPOETANT HOMEWORK GRADE...
- M Mathematics Find sin F and sin c....
Ответ:
Option A. is the correct option.
Step-by-step explanation:
Two equations are 3x + y = 9 ------------(1)
and 3x - 5y = 15 ----------(2)
we have to calculate the value of x common for both.
We multiply equation 1 by 5 and add it to equation 2
15x + 5y = 45
3x - 5y = 15___
18x = 60
x =![\frac{60}{18}=\frac{10}{3}](/tpl/images/0342/6298/1596c.png)
Therefore option A.
is the answer.
Ответ: